Since premium TDI's were not available in the years I like in the country I live in I put a diesel in a premium wagon. While I was at it, I imported a 6 speed manual transmission to go along with it from England.
Build Thread:
Current Mods:
Fuel type conversion
Engine swap
Auto-> manual swap
Higher temp thermostat
Engine insulation
Pre and post Lube pump for EOC
Diesel cat in place of gasoline cat
Water/ methanol injection
Bypass oil filtration for reduced waste oil (and engines)
Highly recycled (well re-used) parts making up most of the car